/*
 * Copyright (c) 2016-2016, KNOPFLERFISH project
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following
 * conditions are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 *
 * - Redistributions in binary form must reproduce the above
 *   copyright notice, this list of conditions and the following
 *   disclaimer in the documentation and/or other materials
 *   provided with the distribution.
 *
 * - Neither the name of the KNOPFLERFISH project nor the names of its
 *   contributors may be used to endorse or promote products derived
 *   from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 * OF THE POSSIBILITY OF SUCH DAMAGE.
 */
package org.knopflerfish.bundle.component;

import java.util.Dictionary;
import java.util.Map;

import org.osgi.framework.Bundle;


public class SingletonComponentConfiguration extends ComponentConfiguration
{
  private ComponentContextImpl componentContext = null;

  /**
   *
   */
  SingletonComponentConfiguration(Component c,
                         String ccId,
                         Map<String, Object> cmDict,
                         Dictionary<String, Object> instanceProps)
  {
    super(c, ccId, cmDict, instanceProps);
    Activator.logDebug("Created singleton " + toString());
  }


  void addContext(ComponentContextImpl cci)
  {
    componentContext = cci;
  }

  void removeContext(ComponentContextImpl cci)
  {
    componentContext = null;
  }


  boolean containsContext(ComponentContextImpl cci) {
    return componentContext == cci;
  }


  int noContext() {
    return componentContext != null ? 1 : 0;
  }


  ComponentContextImpl getContext(Bundle b, Object instance) {
   return componentContext;
  }



  ComponentContextImpl [] getAllContexts() {
    if (componentContext != null) {
      return new ComponentContextImpl [] { componentContext };
    } else {
      return new ComponentContextImpl[0];
    }
  }

}
